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Finding the Fourth Proportional to 726,578.76, 1,090,014 and 253,137

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Solution

The fourth proportional to 726,578.76, 1,090,014 and 253,137 is: 379,756.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,578.76 : 1,090,014 = 253,137 : x
  2. Step 2: Convert to fraction form
    726,578.76/1,090,014 = 253,137/x
  3. Step 3: Cross multiply
    726,578.76x = 1,090,014 × 253,137
  4. Step 4: Simplify right side
    726,578.76x = 275,922,873,918
  5. Step 5: Solve for x
    x = 275,922,873,918/726,578.76
  6. Step 6: Final answer
    x = 379,756.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.